25138520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:169

約数の個数: 128

約数和(自身を含む): 67737600

約数和(自身を除く): 42599080

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 31, 38, 40, 44, 55, 62, 76, 88, 95, 97, 110, 124, 152, 155, 190, 194, 209, 220, 248, 310, 341, 380, 388, 418, 440, 485, 589, 620, 682, 760, 776, 836, 970, 1045, 1067, 1178, 1240, 1364, 1672, 1705, 1843, 1940, 2090, 2134, 2356, 2728, 2945, 3007, 3410, 3686, 3880, 4180, 4268, 4712, 5335, 5890, 6014, 6479, 6820, 7372, 8360, 8536, 9215, 10670, 11780, 12028, 12958, 13640, 14744, 15035, 18430, 20273, 21340, 23560, 24056, 25916, 30070, 32395, 33077, 36860, 40546, 42680, 51832, 57133, 60140, 64790, 66154, 73720, 81092, 101365, 114266, 120280, 129580, 132308, 162184, 165385, 202730, 228532, 259160, 264616, 285665, 330770, 405460, 457064, 571330, 628463, 661540, 810920, 1142660, 1256926, 1323080, 2285320, 2513852, 3142315, 5027704, 6284630, 12569260, 25138520]

約数ペア:

[(1, 25138520), (2, 12569260), (4, 6284630), (5, 5027704), (8, 3142315), (10, 2513852), (11, 2285320), (19, 1323080), (20, 1256926), (22, 1142660), (31, 810920), (38, 661540), (40, 628463), (44, 571330), (55, 457064), (62, 405460), (76, 330770), (88, 285665), (95, 264616), (97, 259160), (110, 228532), (124, 202730), (152, 165385), (155, 162184), (190, 132308), (194, 129580), (209, 120280), (220, 114266), (248, 101365), (310, 81092), (341, 73720), (380, 66154), (388, 64790), (418, 60140), (440, 57133), (485, 51832), (589, 42680), (620, 40546), (682, 36860), (760, 33077), (776, 32395), (836, 30070), (970, 25916), (1045, 24056), (1067, 23560), (1178, 21340), (1240, 20273), (1364, 18430), (1672, 15035), (1705, 14744), (1843, 13640), (1940, 12958), (2090, 12028), (2134, 11780), (2356, 10670), (2728, 9215), (2945, 8536), (3007, 8360), (3410, 7372), (3686, 6820), (3880, 6479), (4180, 6014), (4268, 5890), (4712, 5335)]